You'll need to contact 48 support about this.
They don't generally read or respond to posts here on the Community Forum.
To contact them see the link in my signature below or email them at support@48months.zendesk.com
But if you requested a number port and received the porting security code by text and entered it into the porting request form then I think the process is automatic from then on so it might be too late to cancel it.
You can always port your number back out from 48 to another provider if necessary.
